1. His older sister had been taken off to the isolation ward.
    他的姐姐被送到隔离病房。

1. 孤独;孤寂;孤立无援
    Isolation is the state of feeling alone and without friends or help.

isolation

    e.g. Many deaf people have feelings of isolation and loneliness...
           很多失聪者都有孤独无助的感觉。
    e.g. He also talked briefly about the isolation he endured while in captivity.
           他还简单谈及了他被俘期间忍受的孤独。

2. 孤立地;脱离…地
    If something is considered in isolation from other things that it is connected with, it is considered separately, and those other things are not considered.

    e.g. Punishment cannot be discussed in isolation from social theory.
           不能脱离社会理论孤立地讨论惩罚。

3. 单独地;独自地
    If someone does something in isolation, they do it without other people being present or without their help.

isolation

    e.g. Malcolm works in isolation but I have no doubts about his abilities.
           马尔科姆单打独干,但我对他的能力丝毫不怀疑。

1. the act of isolating something
    setting something apart from others

    Synonym: closing off

2. a country''s withdrawal from international politics

    e.g. he opposed a policy of American isolation

3. a feeling of being disliked and alone

4. (psychiatry) a defense mechanism in which memory of an unacceptable act or impulse is separated from the emotion originally associated with it

5. a state of separation between persons or groups